Process of hydrating phosphorus pentoxid.



SAMUEL EEAHQOK, OF CHICAGO, ILLINOIS,

.lSSIGNOR TG I N'I'ERNATIONAL AGRICUL- ii: CORFOREFI'TLON, OF NEW YDBK,N. :1, A CORPOIEZIATXON OF NEW YORK.

PROGESS 01E IEIYDZELATING PHOSPHORUS 3?E1'J'.FOXID.

all whom, it may (unicorn it known that I, Smnuzr, Pi-zncooio ine'n oithe Uniled Snli residing nl figfiflill the count) of (will and filnlo ofinoiza, have invented certain now uinl unoll Improvv-nno:it:1 inProcesses o1? llvdrzning li hospsmrno Penioxio; and .i do hcrchy do-Clare t following to he n full. clour, and exact a ,.v;;='1ption of thoinvention, snoh on will cnohio oihcrs skilled in th\ art to which it up;thins to make and into the some.

Thin invent-ion relates to the hydration of phosphoric unhya rid, andhas for i'tfv olijecl; to provide a, process which Wili accomplish i hispurpose in a more expeditious manner than those heretofore propmzod.

To these ends tho invention consists in tho novcl step s constituting mypromos as will on horoinn'ficr disciosod and particularly poinied onl;in rho claims.

well known, phosphorus pcnt-oxid, 01, in the form of n vapor does notreadhydride or comhine with water at orclinry tempomtnros to formphosphoric :widf it may in fact be pa 6. through a water spray, or drawni'e 'icntedly through a gar-1 .wcruhljicr iili ordinary temperatures,wilhout any l'miterizil hyvh'nlion. l have discoverfli on the, otherhand that if ihc ii'ror contains a quantity of phosphoric acid so thin:it has :1 specific gravity of soy iii B. or 1.9 B6 the hydration isgreatly i'ucililnl'cci, and also that Water at say 100 if eilcrts; tho.lixalion of the whim of hydro- Lion with :i velocity many times thatol' waiver at 20 (T. l have further cliscovcrerl ill-u, lJPiZlLiii"rosulis are attained with hot water llnin with loom, and that the hostr0- splts re zrllziined when the Wator hcnlcd nhovc 100 C. Withoutforming steam. do oor iingly in carrying out my process, l provhilc :1wot-oilolulion containing: phosphoric arid and having a specific gravityof navy 3.2 B6 which is than hciitod to just holovv its boilingpoint andsubject the phosphorus pcnboxid to said solution.

For commercial purposes, I use any suit- SSE Specification of LettersI'zilo'nt.

oolc type of gas scrnl bm, such for example i sent:

flintoniod ivlnr. ll), W114.

Application filed September '3', 1912. Serial No, 719.153

as tho Guy lino-soc lower, or [ho lllovcr lower \vcll knovvi'i inconnoclion with the nmnnluclnro ol" sull'uric :u'id and .l spray the:union" H n loniporulurc slightly i :lhnn lllll" l. lrv any Fanil'ulilolllllllllS until it has hyrirulcd enough of tho ponb-oxid to fornr 1|solulion having in spooilic gravity of Hill)- nlnntiz'illy 1.2 lu'n \Vlun this occurs, lho ro- :urlion voloqily inrrmscs as above stated, and1hr limit lilicrulod soon .onllicicnt t0 misc lhc lllllllJl'l'lll'lllP-lo or above the boiling; point of tho ;-:olulion. Accordingly theheating mourn; for lho wutor originally employed, in so rogulnlcd :15ill) not permit the Solo lion to boil hnl lo uminloin it, on the otherhand, lu=lovv ils' boiling poinl'.

(if course, in liu'gn. scale ('ipcrzitions more or loss of tho ponl-oxidis unavoidably hydrntcd in tho lforni of vapor which must he rmnilonhod,and I oli'ocl; this by exposing the some to cooling condenser surfacesin the usual nninncn as for oxlm'iplc by passing said vapors throughcold gas scrubbers or oondcnsvrs.

What I claim is:-

1. The process ol" hydrating phosphorus pent-oxid, P 0 which conxislssin subjecting the sonic to tho notion of \vntor at n tcznpcrntnrc a'oovc90 (L'nntil snllicicnt phosphoric acid has l'ornud to produce n solotion of sulislainliully Bnuni, and lhcn maintaining lhc lcnniiorzuurcabove 100 1. subslzlntinlly as (l0$(illll(l.

2. The process of hydrnlin phos 'ihorus 'pcnl-oxid. P 0 which consislsin subject ing tho some to the notion 01? hot water at a lonipcrnturoabove 5J0 C. until mlliricnt phosphoric acid has formed to produce nsolution of substantially L9 llznnn, and thou maintaining thelompcruthrc nhovo 100 7., hut h slovv tho boiling point of saidsolution, substantially as dcsorilicd.

In iostiinony whereof, l nllix my signalure, in prcsonco of twowiinossos.

:FMQHIEL Pl A COCK.

Witnesses T. A. Wrmnnsroon, N. CURTIS Lnnroxo.

Mwh, by addressing; inc Commissioner of laienka,

